window.scrollReveal = new scrollReveal({
    reset: true,
    move: '50px',
});

$(document).scroll(function() {
    var top = $(this).scrollTop();
    if (top > 90) {
        $('#scr-hea').fadeIn(500);
    } else {
        $('#scr-hea').fadeOut(500);
    }
});
new Swiper('.swi-3', {
    // autoplay: true, //可选选项，自动滑动
    loop: true,
    navigation: {
        nextEl: '.swiper-button-next',
        prevEl: '.swiper-button-prev',
    },
});